Case study

SP542E MQTT ↔ BLE bridge: local control through the controller protocol

An MQTT-to-BLE bridge that controls the SP542E LED controller from Home Assistant using BanlanX_6xx commands. Its protocol notes identify service FFE0, write characteristic FFE1, plaintext 53-prefixed frames and acknowledged writes for power, white color temperature and brightness.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 2
Last commit: 2026-05-29
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: An always-on Mac with a local GUI session, Bluetooth permission and BLE access to the SP542E.
Prerequisites: Home Assistant with MQTT and credentials configured for the bridge.
Limits: The bridge keeps optimistic local state; changes made through the original app or remote are not reflected.
License: MIT License.

Cite

BibTeX

@misc{sp542e-ha-bridge-case,
  title = {{SP542E MQTT ↔ BLE bridge: local control through the controller protocol}},
  howpublished = {\url{https://github.com/xydac/sp542e-ha-bridge}},
  url = {https://github.com/xydac/sp542e-ha-bridge},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/sp542e-ha-bridge-case/}}
}

Plain text

SP542E MQTT ↔ BLE bridge: local control through the controller protocol. https://github.com/xydac/sp542e-ha-bridge (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/sp542e-ha-bridge-case/

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About this entry

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Primary sources

README.md GitHub · xydac/sp542e-ha-bridge · Revision 6723ee3
LICENSE GitHub · xydac/sp542e-ha-bridge · Revision 6723ee3